Drilling tool



FIG. 1 is a front view of a first embodiment of a drilling tool showingthe new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a front view of a second embodiment of a drilling tool showingthe new design.

The broken lines shown in the drawings are for the purpose ofillustrating portions of the drilling tool and form no part of theclaimed design. A top view of the second embodiment is omitted becausethat view is identical to the top view of the first embodiment shown inFIG. 2. A bottom view of the second embodiment is omitted because thatview is identical to the bottom view of the first embodiment shown inFIG. 3. A left side view, a right side view, and a rear view of eachembodiment are omitted because those views are identical to the frontview of each respective embodiment.

CLAIM The ornamental design for a drilling tool, as shown and described.